Finding the Fourth Proportional to 1,128.32, 1,695.55 and 608.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128.32 : 1,695.55 = 608.70 : x
2. Step 2: Convert to fraction form
   1,128.32/1,695.55 = 608.70/x
3. Step 3: Cross multiply
   1,128.32x = 1,695.55 × 608.70
4. Step 4: Simplify right side
   1,128.32x = 1,032,081.29
5. Step 5: Solve for x
   x = 1,032,081.29/1,128.32
6. Step 6: Final answer
   x = 914.71